Your PS3 is not malfunctioning, PlayStation Network will be offline for routine scheduled maintenance on Thursday, November 17th from approximately 8am until 10pm PST. During the maintenance, you will be unable to access the following services:
- PlayStation Store on PS3 and PSP.
- PlayStation Network Account Management.
- PlayStation Network Account Registration.
However, some users may be able to play online during the maintenance. Unfortunately, this doesn’t seem to include Call Of Duty: Modern Warfare 3 :(. Maybe in the meantime they can fix Call Of Duty: Elite. The good news is that even during this maintenance, you can continue to collect in-game Trophies and these will be updated on your profile once PlayStation Network is back up and running.